more explanatory comments and README.md (commit before UI overhaul)

adds comments to main.js for clarity

tokenisation working and token selection also

generates checkboxes next to English definition results so that user can decide which definitions they want to push to Anki card

cards able to be added to Anki with real results

gets card added to Anki on click

added logging statements and created reusable renderList component for results

creates text input v-model and simple lookup with jisho returning results to result cards in app

centres renderer window on menubar icon

gets icon to display on menubar

fixed folder structure

Initial commit